Window lock



C. J. RATEIKE WINDOW LOCK May 29, 1934.

Filed July 20, 1952 2 Sheets-Sheet 1 1570 71237".- Cha'r/w JRZEZ/Ce y29, 1934- c. J. RATEIKE I 1,960,509

WINDOW LOCK Filed July 20, 1932 2 Sheets-Sheet 2 Int/612257: 671227"! asJRaZz'ke Patented May 29, 1934 UNITED STAT I 'ATENT oFFlcE 10 Claims.

This inventin relates to Window locks andmore particularly to anadjustable lock for windows, although certain features thereof may beemployed with equal advantage for other purposes.

It contemplates more especially the provision of an improved lock thatis compact, adjustable, inexpensive, and capable of substan tiallyconcealed installation without entailing much labor or expense.

Numerous types of window locks have heretofore been proposed but thesehave not proven entirely satisfactory owing to the fact that they arevery obtrusively attached, and are rather cumbersome in their operationand installation. Then, too, window locks of the character mentionedhave not been capable of varied adjustment to afford complete windowutility for locking and ventilation purposes.

One object of the present invention is to simplify the construction andimprove the operation of devices of the character mentioned.

Another object is to provide an improved locking expedient for windowsthat enables resort to weather stripping as a cooperating element.

Still another object is to provide a window lock designed forcooperation with weather stripping to enable the varied engagement forlocking and ventilation purposes.

A further object is to provide a lock that has a plurality ofadjustments to enable positive locking, uni-directional movement of thewindow and freedom of movement in both directions without inconvenienceor entailing much time of the attendant.

A still further object is to provide a simple and improved window lockthat is compact and readily installed without substantial display.

Still a further object is to provide a simple and improved lock that isreadily installed in position for cooperation with a weather strippingto accomplish the intended purpose thereof.

Other objects and advantages will appear from the following descriptionof an illustrative embodiment of the present invention.

In the drawings:

Figure 1 is a front view in elevation of a window showing the installedlocks of the type embodying features of the present invention.

embodying features of the present invention installed upon a' lowerwindow frame.

Figure 5 is a perspective view of a serrated bar member utilized forcooperation with the lock disclosed in Figures 3 and 4.

Figure 6 is an enlarged fragmentary view of weather stripping providedwith an irregular protruding edge for cooperation with the window lock.7

Figure '7 is a top view of the weather stripping disclosed in Figure 6,there being shown a strip reinforcement for the irregular protrudingridge or edge.

Figure 8 is a sectional View taken longitudinally through the lockdisclosed in Figure 3.

Figure 9 is an end view of the lock disclosed in Figure 8.

Figure 10 is a front view of the lock with the outer face plate removedto clarify the showmg.

Figure 11 is a perspective view of the adjusting lever disclosed inoperative position in Figures 8 and 10. a

Figure 12 is a perspective View of the locking plate constituting anelement of the lock assembiy disclosed in Figure 10.

Figure 13 is a front view of a lever strip disclosed in assembledposition in Figure 10.

' Figure 14 is a side view showing the assembled casing disclosed inFigure 9.

The structure selected for illustration comprises a window frame 10 ofstandard or approved construction with stiles 11 thereof properlygrooved for receiving the customary lower and upper window sashes 12 and13, respectively. The window sashes 12 and 13 are normally maintainedwithin the stiles 11 for slidable displacement owing to the guidemembers 14 which are in projected attachment to the stiles 11. As shown,the window sashes 12 and 13 are provided with transparent window panes15 and 16, respectively, to serve as a closure therefor in accordancewith modern and standard practice.

In order to provide proper ventilation and yet afford burglaryprotection against admission through the window frame 10, looks areprovided on each of the sashes 12 and 13 along a side member thereof.The locks comprise, in this intance, complemental case sections 17 and18 which form an enclosure in their assembled position. The casesections 17 are stamped or otherwise shaped from sheet material toprovide upstanding side flanges 19 and an end flange 20 along threesides thereof with the open end providing an extension 21 which issubstantially a complement to the upstanding flange 20. As shown, theside flanges 19 have extensions 22 terminating just short of theextension 21 and spaced upwardly therefrom to provide a cut-out 23 whichaffords cooperation with the complemental top plate 18 as will morepresently appear.

The top plate 18 is somewhat wider than the bottom casing section 17 toprovide overlapping regions 24 having apertures for the reception offasteners such as screws 25 therethrough. The screws 25 cooperate withthe window sash to effect the attachment of the lock casing in acorrespondingly shaped cavity provided therein. The top plate 18 has adepending flange 26 sized for disposition between the bottom casingextensions 22 to occupy the open end thereof just above the bottomextension 21, there being side flanges 27 extending from the dependingflange 26 to occupy the cut-outs 23 provided in the bottom casingsection 17. An upwardlly extending projection or ridge 28 is providedintermediate the rear flange 20 to cooperate with a correspondinglyshaped slot 29 provided in the top plate 18. In consequence thereof, theridge 29 may be swaged or flattened to effect the permanent assembly andattachment of the top section 18 to the bottom sections 17, and the sideextensions 22 of the former may be or are preferably turned over toengage the depending top section flange 26 to provide added complementalconnection between the casing sections.

, The interior mechanism of the case sections 17 and 18 comprise, inthis instance, a locking rod 30 which has a reduced extremity 31projecting through an aperture provided in the end flange 20, thereduced extremity 31 being swaged to provide an enlarged head 32 forprecluding the removal of the locking rod 30 and permitting its freepivotal displacement in looking and unlocking positions. A positioningplate 33 is provided beneath the locking rod 30, it being substantiallyrectangular and provided with a rolled edge defining a tubular cylindricbarrel 34 with an end thereof closed by an upstanding flange 35 pressedor otherwise shaped from the plate 33. An aperture 36 is provided in acorner of the plate 33 for pivotal engagement with a stud 37 anchored inthe bottom section 17 so that the side edge 38 proximate to the aperture36 may be disposed adjacent and in alignment with the end flange 20 ofthe bottom section 1'7. A coiled spring 39 is disposed within thetubular barrel 34 for contact with the bottom section flange 20 so as tourge the plate 33 to its extreme clockwise position (viewed from Figure8) with the flange 35 abutting against the locking rod 30 which iscorrespondingly moved in a similar locking direction.

Alocking lever 40 is pivoted about a shank 41 to a pin 42 providedthrough the casing sections 17 and 18, the pin 42 being held in positionby a fastener such as a nut 43. So that the lever 40 may not beaccidentally moved or rotated, it is provided with an ear 44 spaced fromthe shank 41 and connected therewith through the medium of a rectangularcam 45. The lever shank 41 and ear 44 are provided with alignedapertures 46 for the projection of the shank 42 therethrough. The pin 42has a coiled spring 47 in enveloping relation therewith between the ear41 and ear 44, thereby imparting a frictional reaction thereto foravoiding accidental pivotal movement of the lever 40. The lever 40 hasan upwardly oif-set extension 48 which projects through an arcuate slot49 provided in the top plate-18 so as to'be exteriorly accessible forrotating the lever 40 within the limit of the slot 49. The rectangularlyshaped projection constituting a part of the lever shank 41 abutsagainst the locking rod 30. In consequence thereof, the lever 40 may beutilized to pivot the locking rod 30 to its extreme open and closedposition with an intermediate neutral point enabling the closing of thewindow, but precluding the opening thereof. It will be observed that thelocking rod 30 in its pivotal movement will effect correspondingtranslation of the positioning plate 33 which has an arcuate slot 50provided therethrough so as to accommodate the pin 42 which isstationary relative to the movement of the plate 33 and afford themovement of the latter.

Should it be desired to positively hold the lever in adjusted positions,a detent lever 51 is pivoted to the side flange 19 as at 52, it havingdepending projections 53 for the reception of a coiled spring 54 thereonto normally urge the detent to its extreme clockwise position (viewedfrom Figure 13). An arcuate lug 55 is formed on the top edge of thedetent 51 to project through a slot 56 provided in the top plate member18 intermediate the extremities of the arcuate slot 49 provided thereon.Consequently, the lever 40 cannot be moved past the projecting detent 56to change the setting of the lock unless the detent 56 is depressed bythe attendant.

The different positions of the locking lever 40 determines the movementof the locking rod 30 which rides in an inclined slot 57 provided in thedepending flange 26 of the top casing section 18, the locking rod 13projecting therethrough to engage a serrated bar of weather strippingprovided on the window stile in a manner which will appear more fullyhereinafter.

It will thus be apparent that the movement of the locking rod 30 to itsextreme clockwise position (viewed from Figure 8) responsive to thespring urged plate 33, will cause the extremity thereof to approach thebottom casing section 1'? owing to the guidance offered by the inclinedslot 57. A bar 58 having a plurality of interrupted serrations 59thereon is fixed to project from the stiles 11 in the path of thelocking rod 30. The bar 58 is provided with apertures 60 to receivefasteners therethrough for attachment to the stiles 11 in a position soas to be in the path of the casing section 18 defined by the bottomextension 21 thereof and the side flange extensions 22 (Figure 9). Inconsequence thereof, a locking rod 36 when in its extreme clockwiseposition will register between the serrations 59 provided on the bar 58so as to preclude movement in either direction. The serrations 59 haveinclined sides 61 which enable the rod 30 to recede therefrom when thelever 40 is positioned to afford the receding motion thereof, therebyenabling the elevation of the lower window sash 12. It is of utmostimportance to note that the bar 58 may be dispensed with in lieu ofweather stripping 62 which has the sash projecting ridge 63 thereofprovided with lateral depressions 64 shaped to correspond with theserrations 59, provided on the bar 58. So thatv the depression 64 may bepermanent and reinforced, a weather strip reinforcement plate 65 isdisposed within the Weather strip ridge 63. Consequently, the weatherstrip ridge 63 is reinforced and the depressions 64 provided therein tocorrespond with the top initially formed in the reinforcement strip 65to make the structure rigid.

The locking rod 30 cooperates, therefore, with the weather strip 62 andthe windows may be lowered or raised to provide ventilation-withoutenabling any access therethrough. In the upper window sash 13, the topplate 18 has the slot57 in the depending flange 26 thereof, inclined inan opposite direction to that shown in Figure 9, and in all otherrespects the construction of the window locks are identical with thelever 40 operating on the other side of the locking member 30.

The operation of the lock mechanism may be understood by consideringseparately each of its three different settings. These are, first, theunlocked position; second, the locked setting; and third, theintermediate setting which permits the window to close but does notpermit its further opening. Considering the control lever 48 set at thatend of the arcuate slot 49which is marked 0" (full line position shownin Figures 3 and 4), the'elements of the lock (for the lower sash-Figure 4) are then arranged as shown in Figure 10. The elements of thelock for the upper sash would be arranged similarly except in anoppositely relative direction to a transverse axis. In this position,the locking rod 30 is positioned at the extremity of the slot 57 asindicated in dotted outline in Figure 9, and thereupon is held clear andfree of the ratchet or serrated projections 59 of the bar 58ordepressions 64 of the weather stripping 62 so that the relative motionbetween locking rod 30 and ratchet does not result in interferingcontact; consequently, the window is not prevented by the locking devicefrom being opened or closed. The locking rod 30 is definitely held inthis position, and its motion in one direction is prevented by the endof the inclined slot 57 while its motion in the other direction isprevented by the corner contact of the lever projection 45 as clearlyshown in Figure 10, so that it is held substantially in the positionindicated and will not interfere with the rack or ratchet teeth 59 or64.

Secondly, considering the control lever 48 set at the other end of thearcuate slot 49 marked L and represented by the dotted outline in Figure4, the parts are then arranged as shown by the full line outline inFigure 8. An attempt to move the window 12 upward will cause the lockingrod 30 to bind against the lower edge of the tooth 59 of the bar 58. Theextremity of the slot 57 will prevent the movement of the locking rod 30away from its fixed position so that the reaction of the ratchet teeth59 upon the locking rod 30 will prevent an upward movement of the windowsash 12. An attempt to lower the window 12 will result in a forcereaction between the upper part of ratchet teeth 59 and the locking rod30 which further exerts force against the inclined edge of the slot 57and the projecting fiange 33' of the positioning plate 33, this beingexerted through the medium of the lever 40. The plate 33 is preventedfrom yielding to this force and turning about its pivot 37 owing to thespring 39, and thus the plate 33 is held in fixed position and so holdsthe locking pin 30 in the lower extremity of the slot 57. The forcebetween the ratchet teeth 59 and the locking pin 30 is transmitted bymeans of the lock sections 17-18 to the sash 12, thereby preventing thewindow from moving downward. The sash 12 cannot, therefore, moverelatively to the window frame 10 and the former is held against anypossible opening or closing.

Thirdly, considering the control lever 40 set at the intermediateposition shown in dotted outline in Figure 4, the parts of the lock withthe exception of the cam 45 willbe arranged as represented in fulloutline in Figure 8. The cam 45 will be in the position represented bythe dotted outline, and should any attempts be made to raise thewindow,- the locking pin 30 will bind against the lower edge of theratchet teeth 59. The lower end of the slot 5'7 will hold the lockingpin 30, and thus the force reaction between the ratchet teeth 59 and pin30 is transmitted by means of the lock sections 1718 to the sash 12 andthe window cannot be raised. However, force is exerted to lower thewindow 12 and the upper edge of ratchet teeth 59 exerts force againstthe pin 30, this causing thelatter to exert force against the edge ofthe projection 35 of the plate 33, this overcoming the urge of thespring 39 to revolve the plate 33 about its pivot 3'7 until thepositions of pin 30 and plate 33 (Figure 10) have been reached orapproached as the sash 12 moves down and the locking rod 30 moves overthe ratchet tooth 59 as it assumes a position in the slot 57 at orapproaching that shown in dotted outline in Figure 9. Thus the lockingrod 30 glides over the tops of the ratchet teeth59 to allow closing, butprecluding further opening of the window 12. The upper sash 13 operatessimilarly, but the lock elements function and are positioned opposite tothe lock mechanisms of the lower sash 12.

Various changes may be made in the embodiment of the invention withoutdeparting from or sacrificing any of the advantages as defined in theappended claims.

I claim:

1. In a device of the character described,the combination with a windowframe having sash guiding stiles, of window sashes in said stiles,weather stripping attached to said stiles, a look mechanism fixed tosaid window sashes for co-- operation with said weather stripping, andadjustable means for controlling said lock mechanism to selectively locksaid sashes against movement.

2. In a device of the character described, the combination with a windowframe having sash guiding stiles, of window sashes in said stiles,Weather stripping attached to said stiles, a lock mechanism fixed tosaid window sashes for cooperation with said weather stripping,adjustable means for controlling said lock mechanism to selectively locksaid sashes against movement, and a cam operatively connected to saidadjustable means for Varied positioning responsive thereto to rendersaid sashes immovable, movable in either direction, or only movabletoward the closing position thereof.

3. In a device of the character described, the combination with a windowframe having sash guiding stiles, of window sashes in said stiles,weather stripping attached to said stiles, a lock mechanism fixed tosaid window sashes, said looking mechanism including a translatablelocking pin for cooperation with said weather stripping, and anadjustable camming device operatively engaging said locking pin toselectively look said sashes against movement, said camming devicehaving varied adjustment to render said sashes immovable, movable ineither direction, or only movable toward the closing position thereof.

4. In a device of the character described, the combination with a windowframe having sash guiding stiles, of window sashes in said stiles, lookmechanism fixed to said sashes, means fixed to said stiles forcooperation with said lock mechanisms, and adjustable means forcontrolling said lock mechanism, to selectively lock said sashes againstmovement.

5. In a deviceof the character described, the combination with a windowframe having sash guiding stiles, of Window sashes in said stiles, lockmechanism fixed to said sashes, and means fixed to said stiles forcooperation with said lock mechanisms, said locking mechanism includinga translatable locking pin for cooperation with said stile attachedmeans, and an adjustable camming device operatively engaging saidlocking pin to selectively lock said sashes against movement, saidcamming device having varied adjustment to render said sashes immovable,mov able in either direction, or only movable toward the closingposition thereof.

6. In a lock, the combination with a casing, of a locking pin movablyconnected to said casing to project through an end wall thereof, a platepivoted to said casing, means on said plate projecting in the path ofsaid locking pin, spring means for urging said plate to an extremeposition, and camming means for adjusting the position of said lockingpin for the purposeset forth.

'7. In a lock, the combination with a casing, of a locking pin movablyconnected to said casing to project through an end Wall thereof, a platepivoted to said casing, means on said plate pro-- jecting in the path ofsaid locking-pin, spring means for urging said plate to an extremeposition, and camming means intermediate a plate shoulder and saidlocking pin for adjusting the position of said locking pin for thepurpose set forth.

8. In a lock, the combination with a casing, of a locking pin movablyconnected to said casing to project through an end wall thereof, therebeing an inclined slot in the end of said casing to guide the movementof said locking pin in and out of operative position, a plate pivoted tosaid casing, means on saidplate;projecting,in the path of said lockingpin, spring means, for urging said plate, to an extreme position, andcamming means intermediate a plate shoulder and said locking pin foradjusting theposition of said locking pin for the purpose set forth.

9. In a lock, the combination with a casing, of a locking pin movablyconnected to said casing to project through an end wall thereof, therebeing aninclined slot in the end of said casing to guide the movement ofsaid locking pin in and out of operativeposition, a plate pivoted tosaid casing, means on said plate projecting in the path of said lockingpin, spring means for urging said plate to an extreme position, andcamming means intermediate a plate shoulder and said locking pin foradjusting the position of said locking pin for the purpose set forth,said-cammingmeans having normally related surfaces to hold said plateand/orlocking pin a gainst movement in the varied range of adjustmentthereof.

10. In a lock, the combination with a casing, of a locking pin movablyconnected to said casing to project through an end ,Wall thereof, therebeing an inclined slotin the end of said casing to guide the movement ofsaid locking pin in and out-of operative position, a plate pivoted tosaid casing, means on said plate projecting in the path of said lockingpin, spring means for urging said plate to an extreme position, cammingmeans intermediate a plate shoulder and said locking pin for adjustingthe position of said locking pin for the purpose set forth, said cammingmeans having normally related surfaces to hold said plate and/or lockingpin against movement in the varied range of adjustment therof, and meansfor maintaining said camming means in adjusted positions.

CHARLES J. RATEIKE its

